/*
 * 懒汉式 ：即延迟加载
 * 
 * 线程不安全：没有做同步处理，多线程时会有问题
 */
public class Singleton_lanhan {
    private static Singleton_lanhan mInstance = null;

    private Singleton_lanhan() {
    }

    public static Singleton_lanhan getInstance() {
        if (mInstance == null) {
            mInstance = new Singleton_lanhan();
        }

        return mInstance;
    }
}
